noremacnoslen noremacnoslen
  • 03-12-2020
  • Mathematics
contestada

7.) Зу = 2-х
2y + 10 = 6x

Respuesta :

iswaryalakshmi2007 iswaryalakshmi2007
  • 03-12-2020

Answer:

By cross multiplication method

x=

(a

1

b

2

−a

2

b

1

)

(b

1

c

2

−b

2

c

1

)

&

y=

(a

1

b

2

−a

2

b

1

)

(c

1

a

2

−c

2

a

1

)

Where a

1

x+b

1

y+c

1

=0 & a

2

x+b

2

y+c

2

=0

are 2 lines

⇒x=

2(−2)−(3×3)

3(−6)−(−2)(−17)

=

−13

−52

=4

y=

2(−2)−(3×3)

(−17)3−(−6)2

=

−13

−39

=3

⇒

x=4&y=3

Answer Link

Otras preguntas

The truest representation of the earth is a polar projection true or false
Which equation represents the line shown in the graph below? A) y = 2/3x + 4 B) y = 2/3x - 6 C) y = 3/2x + 4 D) y = 3/2x - 6
124 -115 is close or far apart and ,what is the strategy to get the answer
GCF of 14 and 32???????????????????????
hich word or words in the sentence are the predicate nominative? Neil Armstrong was the first astronaut to walk on the moon. A. walk B. astronaut C.
What is 0.95 rounded to the nearest tenth?
If you see a yield sign ahead,be prepared to?
black codes inspired Radical Republicans in congress to draft
Please answer number 6
On the school picnic, 4 and 3/4 dozen hamburger rolls 5 and 1/2 dozen hot dog rolls were used. How many dozens of rolls were used in all?